Assessment of land use change in the dryland agricultural region of Córdoba, Argentina, between 2000 and 2020 based on NDVI data
The dryland region of Córdoba province experienced a strong increase in agricultural land-use in the 21st century. Between years 2000 and 2020 the temporal variation of land-use measures derived from the seasonal variation curve of the Normalized Difference Vegetation Index (NDVI) was analyzed. In e...
| Main Authors: | , , , , , |
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| Format: | Online |
| Language: | eng |
| Published: |
Facultad de Ciencias Agropecuarias
2024
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| Subjects: | |
| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/41276 |
| _version_ | 1806010984141160448 |
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| author | de la Casa, Antonio Ovando, Gustavo Díaz, Guillermo Díaz, Pablo Soler, Fernando Clemente, Juan Pablo |
| author_facet | de la Casa, Antonio Ovando, Gustavo Díaz, Guillermo Díaz, Pablo Soler, Fernando Clemente, Juan Pablo |
| author_sort | de la Casa, Antonio |
| collection | Portal de Revistas |
| description | The dryland region of Córdoba province experienced a strong increase in agricultural land-use in the 21st century. Between years 2000 and 2020 the temporal variation of land-use measures derived from the seasonal variation curve of the Normalized Difference Vegetation Index (NDVI) was analyzed. In eleven departments of the region, the following NDVI measurements wereobtained for each crop cycle from September to April: minimum value (NDVIn), maximum value (NDVIx), amplitude (NDVIa=NDVIx-NDVIn) and mean value (NDVIm). The sowing percentage per department was analyzed spatially and temporally, as well as the land use indicators. Both NDVIn and NDVIx are related to the sowing area per department, determining a negative correlation (-0.36) for NDVIn and a positive one (0.596) for NDVIx. The positive correlation with NDVIa (0.569) is considered directly linked to the agricultural land use. The seasonal variation of the NDVI showed changes over time, which werecompatible with the increase in agricultural activity in the region. Although the increase in agricultural land use was noticeable through both the decrease in NDVIn and the increase in NDVIx, along with a general trend towards rising NDVIa values, the variation was more apparent in those departments where agricultural activity increased to a greater proportion. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-41276 |
| institution | Universidad Nacional de Cordoba |
| language | eng |
| publishDate | 2024 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-412762024-07-05T18:24:59Z Assessment of land use change in the dryland agricultural region of Córdoba, Argentina, between 2000 and 2020 based on NDVI data Evaluación del cambio en el uso del suelo en la región agrícola de secano de Córdoba, Argentina entre 2000 y 2020 basado en datos NDVI de la Casa, Antonio Ovando, Gustavo Díaz, Guillermo Díaz, Pablo Soler, Fernando Clemente, Juan Pablo soybean corn temporal trend sustainability soja maíz tendencia temporal sustentabilidad The dryland region of Córdoba province experienced a strong increase in agricultural land-use in the 21st century. Between years 2000 and 2020 the temporal variation of land-use measures derived from the seasonal variation curve of the Normalized Difference Vegetation Index (NDVI) was analyzed. In eleven departments of the region, the following NDVI measurements wereobtained for each crop cycle from September to April: minimum value (NDVIn), maximum value (NDVIx), amplitude (NDVIa=NDVIx-NDVIn) and mean value (NDVIm). The sowing percentage per department was analyzed spatially and temporally, as well as the land use indicators. Both NDVIn and NDVIx are related to the sowing area per department, determining a negative correlation (-0.36) for NDVIn and a positive one (0.596) for NDVIx. The positive correlation with NDVIa (0.569) is considered directly linked to the agricultural land use. The seasonal variation of the NDVI showed changes over time, which werecompatible with the increase in agricultural activity in the region. Although the increase in agricultural land use was noticeable through both the decrease in NDVIn and the increase in NDVIx, along with a general trend towards rising NDVIa values, the variation was more apparent in those departments where agricultural activity increased to a greater proportion. La región de secano de la provincia de Córdoba experimentó un fuerte aumento en el uso agrícola del suelo en el siglo XXI. Se analizó la variación entre los años 2000 y 2020 de diferentes medidas relacionadas al uso del suelo derivadas de la curva de variación estacional del Índice de Vegetación de la Diferencia Normalizada (IVDN). En once departamentos de la región se obtuvieron las siguientes mediciones del NDVI de septiembre a abril: mínimo (IVDNn), máximo (IVDNx), amplitud (IVDNa=IVDNx-IVDNn) y valor medio (IVDNm). Se estableció espacial y temporalmente el porcentaje departamental de siembra y del conjunto de indicadores de uso del suelo. Tanto IVDNn como IVDNx están relacionados con la superficie departamental de siembra, determinando una correlación negativa (-0,36) para IVDNn y positiva (0,596) para IVDNx. La correlación positiva con IVDNa (0,569) se considera ligada de manera directa al uso agrícola del suelo. La variación del IVDN muestra cambios a través del tiempo, compatibles con el aumento de la actividad agrícola en la región, que se evidencia tanto por la disminución del IVDNn, el aumento del IVDNx y una tendencia positiva de IVDNa, más evidente en departamentos donde la actividad agrícola incrementó el uso del suelo en mayor proporción. Facultad de Ciencias Agropecuarias 2024-07-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/41276 AgriScientia; Vol. 41 No. 1 (2024); 27-43 AgriScientia; Vol. 41 Núm. 1 (2024); 27-43 1668-298X 10.31047/1668.298x.v41.n1 eng https://revistas.unc.edu.ar/index.php/agris/article/view/41276/45699 Derechos de autor 2024 Antonio de la Casa, Gustavo Ovando, Guillermo Díaz, Pablo Díaz, Fernando Soler, Juan Pablo Clemente https://creativecommons.org/licenses/by-sa/4.0 |
| spellingShingle | soybean corn temporal trend sustainability soja maíz tendencia temporal sustentabilidad de la Casa, Antonio Ovando, Gustavo Díaz, Guillermo Díaz, Pablo Soler, Fernando Clemente, Juan Pablo Assessment of land use change in the dryland agricultural region of Córdoba, Argentina, between 2000 and 2020 based on NDVI data |
| title | Assessment of land use change in the dryland agricultural region of Córdoba, Argentina, between 2000 and 2020 based on NDVI data |
| title_alt | Evaluación del cambio en el uso del suelo en la región agrícola de secano de Córdoba, Argentina entre 2000 y 2020 basado en datos NDVI |
| title_full | Assessment of land use change in the dryland agricultural region of Córdoba, Argentina, between 2000 and 2020 based on NDVI data |
| title_fullStr | Assessment of land use change in the dryland agricultural region of Córdoba, Argentina, between 2000 and 2020 based on NDVI data |
| title_full_unstemmed | Assessment of land use change in the dryland agricultural region of Córdoba, Argentina, between 2000 and 2020 based on NDVI data |
| title_short | Assessment of land use change in the dryland agricultural region of Córdoba, Argentina, between 2000 and 2020 based on NDVI data |
| title_sort | assessment of land use change in the dryland agricultural region of cordoba argentina between 2000 and 2020 based on ndvi data |
| topic | soybean corn temporal trend sustainability soja maíz tendencia temporal sustentabilidad |
| topic_facet | soybean corn temporal trend sustainability soja maíz tendencia temporal sustentabilidad |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/41276 |
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